Ricoh D027 Service Manual page 72

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
the FLUTE serial driver was detected, or BREAK signal from the other
station was detected.
Power outage at the EFI controller
EFI controller was rebooted
Connection to EFI controller loose
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Printer application error
An error is detected in the printer application program.
Defective software
CTL
920
Unexpected hardware resource (e.g., memory shortage)
D
1. Software defective; switch off/on, or change the controller firmware
if the problem is not solved
2. Insufficient memory
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Printer font error
A necessary font is not found in the SD card.
CTL
921
A necessary font is not found in the SD card.
D
The SD card data is corrupted.
1. Check that the SD card has the correct data.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
990 CTL Software performance error
D
The software makes an unexpected operation.
Defective software
SM 3-75
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SC Tables
D027/D029 APPENDICES